{"product_id":"kef-the-reference-8b-subwoofer","title":"KEF The Reference 8b Subwoofer","description":"To experience the full impact of dramatic on-screen effects, bass definition and control are as important as extension. For power with accuracy, the Reference sub boasts two 500W Class D amps, each driving a 228mm (9 inch) long-throw, ultra-low distortion driver, connected back-to-back in the heavily braced, acoustically inert cabinet. Only a truly great subwoofer could do justice to Reference standards of home theatre, and it does.\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\n \nModel REFERENCE 8b \u003cbr\u003e\nDesign Force cancelled closed box \u003cbr\u003e\nLF Drive unit 2 x 225 mm (9in.) \u003cbr\u003e\nFrequency range at 90dB output in free-space mode (-6dB) 18Hz \u003cbr\u003e\nFrequency response at 90dB output in free-space mode (±3dB) 24Hz \u003cbr\u003e\nAmplifier 2 x 500 W Class D with switched mode power supply and DSP based control section \u003cbr\u003e\n\nMaximum output\n(peak sound pressure level at 1m 50Hz) 110dB\u003cbr\u003e \nLow pass filter variable Variable frequency: 40Hz to 160Hz\u003cbr\u003e\nVariable slope: 12dB\/oct, 18dB\/oct, 24dB\/oct\u003cbr\u003e\nLFE mode: 350Hz, 18dB\/oct\u003cbr\u003e \nInputs RCA phono sockets\u003cbr\u003e\nAnalog XLR socket\u003cbr\u003e\nSpeaker level inputs\u003cbr\u003e\n \nLink out RCA phono socket\u003cbr\u003e \nNet internal volume 23L\u003cbr\u003e \nWeight 35kg (77.2lbs.)\u003cbr\u003e \nDimensions (H x W x D) 398 x 365 x 429 mm (15.7 x 14.4 x 16.8 in.)\u003cbr\u003e\nPower requirements 100V - 120V \/ 220V - 240V ~50\/60Hz\u003cbr\u003e \nPower consumption 1000W\u003cbr\u003e\nFinishes Deep Piano Black","brand":"KEF Audio","offers":[{"title":"Default Title","offer_id":57409472856396,"sku":"KEFREF8B","price":3750.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1053\/6891\/2204\/files\/KEF-The-Reference-8b-Subwoofer-Black.png?v=1777486752","url":"https:\/\/www.stoneaudio.co.uk\/products\/kef-the-reference-8b-subwoofer","provider":"Stone Audio","version":"1.0","type":"link"}